Heating apparatus



Jan. 5,1932. s. s. BEMAN 1,839,461 l HEATING APPARATUS Filed June 4, 1928 2 Sheets-Sheet l 4Z fies/lc gp V (5. D D g j Jan. 5, 1932-. s. s. BEMAN 1,839,461

HEATING APPAATUs Filed June 4. 1028 2 Sheets-Sheet 2 www WM 1f. H Miu Wil llli efzr 5 256772272,

@Mm l Patented Jen. 5, 1932 stares SPENCER s. BEMAN, or WINNETKA, ILLINOIS HEATING- APPARATUS Application led June 4,

rllhis invention pertains toheating, apparatus, and more particularly to preheatersfork fluid used in generating plants and the like;

whereby fluid for the operation thereof is introduced to said plants at an initial raised` readily applied to or built in a heating sys- 'temperature t Many of the boiler systems and the like now in use are so-called-oil burners, this type of fuel being used in the heating of the Water 1Q; contained in the systemtor dili'erent uses throughout the entire system, and` it is `frequently necessary to supply vsaid boilers With-c replacement Water, and- Where such is done,

it is very undesirable to introduce cold Water e into the already heated Water or steamspacel as naturally that reduces the eiiiciency of the boiler, requiring a much Y longer vperiod` to heat the Water suciently to introduce it for circulation into the remainder of the system With consequent heat losses. `This is likewise true in heating systems Where the heated fluid has been circulated through the system and is returned to the boiler for reheating, it being4 undesirable that underl severe operating con- "'J ditions or Where the system is large, ther re" turned fluid Will be 1n a comparatively cold` condition. Similarly, Wherean oil burning system is inoperation, it is oftentimes necessary and desirable to heat the oil to properly if? supply it to the oil burner as the oilused in such system is of anexpensive grade and con-l sequently quite viscous, and for: the proper combustion of the oil in many of the burners new 1n use, the oil Amust be atomized at the .j burner tip to support proper ignition. In

many of the heating systems, especiallyvfor household use separate heaters are rovided for the domestic Water, the operation of sai-dv heaters being intermittent, requiring some time to heat the Water supplied through the system, or the heaters may be of constantioperation, butin either case, additional expense must.

Water.

It is therefore an object of this inventionto initial raised temperature.

another object is to provide 'a-device utilizin gA lWaste heat to preheat luid supplied to the I be incurred Vin heating this Vdomesticr 192s. serial Nu. 282,553.

ments oinanufacture and service. i

Still another object 1s to provide a device tem, Whichdevice requires no moving parts or radica-lA departures ory alterationsl in or from existing systems. Y

A Jfurther object is to provide a device for heating a plurality olf-fluids in a system, such as, for example, the domestic Water, thesupply vWater to the boilers, and the 'fuel to the boilerkheating apparatus, and one Which requires no continued expense for theproper operation thereof. Y y

YWith these and yvarious other objects in View, the; invention may consist of certain novel features ot construction and operation as will be more fully described and particularly pointed outr in, the specification, draw-V ings and claims appended hereto.

In the drawings, which illustrate an em-V y bodiment of the device and wherein like reference characters arey used to designate like. VPartsc c y f Figure l is a more *orV less diagrammatic Aelevation of a heating systemr embodying the invention; y ,f

Figure 2 is a front elevation of the as,- sembled preheating device; Y i

Figure 3 is a sectional `side elevation of thev preheating device, certain parts being broken away, the same being taken substantially in the plane as indicated by the line 3 3 of Figure 2; f

Figure-Lly is a top sectional plan view-of the heating device, thesame being taken sub-y stantially in the plane as indicatedy by the line 4 4 oFigure 3; and"Y the preheating device, the. samefbeing takeny substantially in the plane as indicated'by the line 5 5 ofFigure 3. v

jReferring first of all-to the system illustratedY in Figure 1the boiler urnace 10 is vvillustrated as one adapted to heat-uid-.oncirculatio-nthrough a heating system, andl the boiler space is vtherefore connected throughpiping l1 to a supply pipe 12 Whereioo by the fluid flows from the boiler space through the. pipes 11 and 12, through the system and returns through return pipe 13 (of any convenient number, one shown), said Ypipe being directly connected to a lower 13, circulates through said device in a manner to be more particularly described,` being drawn on from a point adjacent the top thereof and returned through piping 16 to a c point in the boiler preferably materially below Athe outlets to pipes 11 to thereby complete the system. As will readily be ap` preciated, the prelieating device is adapted to utilize the ordinarily Wasted heat which is drawnroff from the boiler through the flue 15, it beingfound desirable to form the or don'ie of the prelieating device Where device in such a manner that the ordinarily Wasted heat passes completely through the device. j

The vWater for domestic use may be made to enter the reservoir of the prehcating device through pipe 17 where it circulates througli'said device, 'beingjdrawn ofi' adjacentthe top thereof and-supplied to the remainder of the domestic system through pipe '18. The boiler illustrated is of the oil burning type'and the Yoil maybe supplied in any kconvenient manner from the oil reservoir 19'tliroughpipe'20 to the upper yportion it is circulated therein and is drawn off from a higher point than that introduced through the pipe connection 21, through Which it is conveyed to the burner 22. y

Referring noiv more particularly to the preheating device per se, illustrated in Fig-V ures 2 to 5 inclusive, the device consists essentially of a lower portion or reservoir23 YYof any convenient size 'and preferably provided` with a removable base plate 24F.A to facilitate assemblage of the device. This reservoir 'is provided with a manifold 25 preferably disposed adjacent the top and side of said reservoir and beingv of comparatively small size and closed With respect to said reservoir. This manifold may be con-y nected through pipe connection 26 to the Aintake 17 o f the domesticrwater system. TheA upper portion or dome 27 is preferably provided With a removable cover member 28 andis provided Witi a vmanifold 29 adapted to be similarly placed in said dome to corre- Y spend with the' manif-016125 in the reservoir,v being of substantiallythe same size as sait manifold fand -closed with respectVto-th'e dome. TheV manifold29 is provided vvi'tha Y fitting 30 comprising a substantiallyV helical coil Vor piping, the saine extending fromA said manifold to a point adjacent the top ofthe dome Where it may be connected to the domestic supply line 18 for the domestic system.

The supply line 2O from the oil reservoir 19 may be connected to the fuel oil heating coil 31, entering the dome adjacent the bottom thereof, (Figure 2), extending into said dome Where it is disposed in substantially. helical formation Within the confines of the helical coil 30 and is connected to the fuel pipe l21 adjacent the top of said manifold. The manifold and dome are positioned in spaced relation and are connected by means of a series of. pipe connections 32, rows of said pipe connections through the depth of the device being preferably disposed in staggeredrelation, as clearly indicated in Figure 4. The manifolds 25 and 29 are also connected by pipe connections 33 to permit circulation through said manifolds. Both the reservoir and the dome are provided With suitably disposed lugs 3i, the same being adapted to accommodate lugs 35 on flue plates 36, said flue plates being provided with openings 37 properly flanged to accommodate the flue 15 so as to provide passage through the preheating device to the flue directly connected to the chimney or exhaust.

The assembly is completed by side plates 38 provided with lugs 39 adapted to be accommodated in lugs l0 on the dome and reservoir, handles L11 being provided in these side plates to facilitate their disposition.

From theV construction illustrated, it will be appreciated that the device may be readily assembled by removing the bottom and top plates 24 and 28 of the reservoir and inanifold, applying the flue plates 36 and the side plates 38 in their proper relation, supporting the same by means of the lugs 34, 35, and 39 f and L10, at Which time the pipe connections 33 and 32 may be applied to aligned apertures in the manifolds 25 and 29 and in the reservoir .and dome. The helical coils or piping 30 and 31 may then be properly positioned in the dome of the device, after which the bottom and top plates 2 and 28 may besecuredY in place, at VWhich time the device is ready for application to the flue 15 and the respective piping connections to complete the system.

. There is an added advantage attained by connecting the dome tothe system pipe 12, such as by vent pipe 412 in that Water circulated through the system is given initial actuation, and air or steam is prevented from being trapped in said dome. In operation then, it ispossible for the system water to initially be heated bythe normally Waste heat by circulating through pipe 13, through the preheating device, up through the vent L12 and through pipe 12 Without going through the Water in the boiler Which is being heated. lThen the vboileiI Water has been heated and starts circulating, then the greatest part of the` water inthe'he'atiiigf systemv iows from pipe 13, through the preheati'iig:l device, through pipelt to theboi'ler, through Y theA boiler and= finallyupthrough pipe 1l? ,toy

pipe- 12, and so-on throughthe s'ystennall.` asf Y before described. Y

It will be further appreciated that devices of this character areliinited as to: size, due to the fact that they are tobe .associatedpartic-V ularly with domestic furnaces, yet kat the Sametime, in order to befeifective, they `must have the proper number and spacing of tubes 82 to permit proper and readyl passage of exhaust gases-through the oifitale-fluej 15. They must yalso have ay smallv domesticwater reservoir in the spaced portions 23 and 2T,

yet must have a suiiiciently largeheatingsur# face to properly function, Vso that the usual heatii'ig` devices forx domestic water may ber discarded or at least only used as an auxiliary heater. The connections 38y must be of sufficient capacity tov permit ready flow,L as

also the connectionsr32, A`yet must not check'- the exhaust gases. It will" also bev appreci ated that thenumbery of tubes 83' are very` limited due to the fact thatsa proper and relaftively larger number of tubes 32y are necess sary to permit sufficientl flow of' thefluid` in the heating system from the' portion 23" to portion 27 for theproper accommodation of4 the iuid in the main heating; line. And it follows that Vthe expedient of' using' coilV 30 as additional'heatingmeans for-the domestic fluid isresorted to as an attachment toman'ifold 29. Further the device must'be inexpensiveV to make and maintain. applicant has accomplished with the device ofthecharacter described in the claims andf` referred to in the specification.

It is to be understood that I do not wish-` to be limited' by the exact embodiment of the device shown,'which is merely by way of4 illustration andl not limitation, .asvarious and other forms of the device will ofcourse be apparent toV those skilled in the art with? out departing from the spirit of the: invention or the scope ofthe claims.

I claim:

l. In a device of the character "described,`

the combination of al heat conducting meni-v ber, fluid containing means associatedl therewith, said means having HuidI receiving members extending within said heat conducting.

member, manifolds, substantially entirely within said means, and connectionsY between.

manifolds extending' within said heatwconductingmember.

2. In a device ofv thecharac'ter described',-

the combination of a heat conducting member, fluid containing means associatedftlierewith, said means havingifluid receiving mein-` beijs extendingl within said heat conducting;

member, manifolds substantially entirely within said means, connections" between manifolds extending' withinsaidheat con? AllA these ducting member, and Huid conducting means y connected'I toone ofsaid manifolds and disposedl in one` of 'said fluid: containing means.`

3. In a device Vof the character'described, the combination-of fluid conductingmeans, afluidreservoir.,` and a fluid' dome associated with said means, said dome beinglocated above saidreservoir,l connections between said-reservoir and dome, fluidv manifolds disposed substantially entirelywithin said dome reservoir respectively and having connectionsy therebetween disposed within said huid conductingI means, and' a connection froml one of said manifolds disposed within said -80' 4. In aV device of the lcharacter described, the. combinationof spaced reservoirs, means associated therewith` to` form a: fluid passage therebetween whereby a change of temperaturemay be imparted to said-reservoirs, connections between reservoirs extending through said passagewhereby iiuid may be circulated? from one reservoir to another,a

Amanifold in one of said reservoirs having' an inletY connection thereto, a manifold in: thefother ofv said reservoirs',A saidlast named manifold havingfluid' conducting means assoi Vifolds` being in communication with each other, fluid conducting means connected; to oneof saidV manifolds and disposed in its respective reservoir, and means for containingfluid disposed in one of said:A reservoirs for heating the iiuid carried in'said means. 6L Ina device of the character described, the combination of reservoirs, casing membersfpositioningt said reservoirs in spaced relation toeachother and forming a passage between -said' reservoirs for conducting heating medium'through the device, con- V'necti'ng means extending through saidfpassage; for forming communication .between v reservoirs, manifolds closed to said reservoirs carried therein,-a fluidi inlet to one of 'saidt manifolds, connections between manin .folds disposed' in said passage, and a fluid outlet from theY other manifold having a ico ilio

portion disposed lin its respective reservoir- Y to provide additionalheating surface for the fiuid conductedv thereby.

7. In i adev-i'oe of? the' character described,

(iii

the combination of-reservoirs, casing inemberspositioning said reservoirs in spaced-relation to each other and forininga passage between said reservoirs for conducting heat- 'inginediuin through the device, connecting means disposed iii staggeredformation/to Yeach other extending` through said passage for forming communication between reservoirs, manifolds closed to-sa-id reservoirs carried therein, a fluid inlet to one of said inanifolds, connections between manifolds vdisposed in said passageand a fluid outlet from the other manifold havin'l` substantially helical portion disposed inits `respective reservoir to provide additional heating surface for the fluid conducted thereby'.

8. In a device ofthe charac er;

between said reservoirs for conducting heating medium through vthe device-connecting means disposed-in staggered forniationtoY .evfil'l n other extending kthrough said passage for forming communication[between reservoirs, manifolds closed to said reservoirs carried therein, a lluid'inlet to one of said manifolds, connections between manifolds dis-V posed insaid passage, a fluidl outlet from the other manifold havinga substantially helical portion disposed in its respective reservoir to provide additional 'heating surface forV the fluid conducted thereby, `and helical huid conducting` means disposed in one of said i'eservoirs for providing heating means for fluid circulatedin said conducting means.

9. In a device ofthe character described,

the combination ofreservoirs, casing mem-1 bers positioning' said reservoirs in spaced relation to each other and forming a passage between said reservoirs for conducting heat ing means 'disposed in staggered formation to each other extending through saidpassage for forming communication between reser-V voirs., manifolds closed to said reservoirs carried therein', a uid inlet to one'of said inani,

folds, connections between manifolds disposed in said passage, a fluid outlet from the other manifold haviiw a substantiallyv helical portion disposed in its respective -reser' voir to provide additional heating surface f orr the fluid conducted therebv, and Vhelical fluid conducting means disposedk inone of said reservoirs and within said helical portion for` described, Y the combination of reservoirs, casing mein-k bers positioning said reservoirs in. spaced re- Y b lation to each other and forininga` passage medium through the device, connecting..

ing through said passage disposed in staggered formation to eachl other to form coinniunication between said reservoir and dome, manifolds closed to said reservoir and dome and carried therein, a fluid inlet to the manifold in said reservoir, connections between manifolds disposed in said passage, and a helical outlet from the manifold in said dome disposed in said dome. s

11. In'afdevice of the character described, thecoinbination of a reservoir and a dome, casing members positioning said reservoir and dome in spaced relation to each other, said dome being above said reservoir to thereby form a passage between said reservoir and dome for conducting heating medium through the device, connecting means extending throughsaid passage disposed in staggered formation to .each other to form communication between said reservoir and dome, manifolds closed to said rese `voir and dome and carried therein. a fluid inlet to the manifoldin said reservoir, connections between manifoldsdisposed in said passage, a helical outlet from the manifold in said dome disposed insaid dome, and helical fluid conducting means disposed in said dome and within the confines of said helical outlet.

12. In a heater, the combination of a fluid receiving chamber having an inlet and an outlet and associated with heating means for heating the-fluid passing through said chainber, vfluid receiving means disposed in said chamberadjacent saidL heating means and having an inlet and an outlet, said uid receiving meansA being constructed and ar-- ranged to be supplied with fluid to be heated as it passes through said means by the fluid in said first named chamber and said heating means. y

13. A heating device having spaced fluid receiving portions formed to provide a` heat conducting passage therebetween, one of said spaced portions having a fluid entrance, the other of said spaced portions having a fluid exit, means extending throughsaid passage for conducting fluid from onespaced portion to the other, said means being subjected to the heat passing through said passage, and a fluidv receiving Vhousing` disposed in each of saidi spaced portions and connected bv means extending through said passage whereby fluid passing through said last named means is subjected to the heat passing through said. passage, one of said fluid receiving housings having an entra-nce and the other of said housings having an extended fluid conducting member connected to a fluid exit from said device, said extended member being disposedin the respective-spaced portion containing said last namedfhousing whereby7 the fluid assingY throuOh said liousino's is sub- `iected to the heat ofthe fluidpassing through .said spaced portions.

14. In a heating device, the combination of nections between said manifolds extending` through said passage, said manifolds being subjected to the heat of the fluid in said portions from a. plurality of directions, and

an elongated conductingl member extending from one of said manifolds and coiled in one of said portions, whereby the fluid passing from said manifolds and through said elongated conducting member is additionally heated by the fluid in said portions.

15. ln a heating device, the combination of spaced fluid receiving portions disposed to form a passage therebetween to receive heat from an olf-talle flue or the like, connections between said portions disposed in staggered relation to each other in said passage and substantially throughout the length thereof whereby the fluid passing from one portion to the other is subjected to the heat in said passage, manifolds disposed in said portions for receiving` different fluid, connections between said manifolds extending through said passage and in staggered relation to said other connections, said manifolds being subjected to the heat of the iuid in said portions from a plurality of directions, and an elongated conducting member extending from one of said manifolds and coiled in one of said portions, whereby the fluid passing from said manifolds andV through said elongated conducting member is additionally heated by the fluid in said portions.

16. In a heating system the combination of a heat generating device having an olf-take flue, a main heating line supplied with heated fluid from said device, a preheating device interposed in and associated with said offtale Hue for receiving heat therefrom, said preheating device including spaced fluid receiving portions, the walls of which are so positioned as to receive heat from said olftalre flue, connections between said portions disposed in the off-take flue, said connections being disposed to permit ready flow through said flue and of suflicient capacity to permit ready flow from one portion to the other, a return from said line to one of said portions, a connection from the other of said portions to said generating device whereby preheated fluid is supplied thereto, a manifold entirely within said first named portion and disposed to receive heat from the iuid therein from a plurality of directions, a different Huid con-A nection to said manifold, elongated conducting means disposed in said second named portion for receiving additional heat therefrom connected to said manifold through connections extending through said flue, and a connection between said elongated means and an external connection.

17. In a heating system the combination of a heat generatingdevice having an oE-take flue, a main heating line supplied with heated fluid from said device, a preheating devicek interposed in and associated with said off-take liue for receiving heat therefrom, said preheating device including spaced fluid receiving portions, the walls of which are so positioned as to receive heat from said 0E- take flue, connections between said portions disposed in the off-take flue, said connections being disposed to permit ready flow through said flue and of sufficient capacity to permit ready flow from one portion to the other, a return from said line to one ofsaid'portions, a connection from the other of said portions to said generating device whereby preheated fluid is supplied thereto, a manifold entirely within said first nam-ed portion and disposed to receive heat from thefluid therein from a plurality of directions, a different fluid connection to said manifold, elongated conducting means disposed in said second named portion for receiving additional heat therefrom connected to said manifold through connections extending through said flue, and a connection between said elongated means and an external connection, a burner for said generating device, a source of fluid fuel supply therefor, a connection between said source of supply and said burner, said connection extending through an elongated conducting member in said second named portion whereby said fuel is heated by the liuid in said portion.

Signed at Chicago, Illinois,this 1st day of June, 1928. n

' SPENCER S. BEMAN. 

